Checking the power supply

Fig 1: Identifying Ignition ON

Courtesy of VOLVO CARS OF NORTH AMERICA.

• Ignition off.
• Disconnect the connector from central electronic module (CEM).
• Ignition on.

  Check the voltage supply between central electronic module (CEM) connector 5E and ground.

  Additional information: 

  • For information on the central electronic module (CEM) connector, see CENTRAL ELECTRONIC MODULE (CEM), REPLACING
  • To connect a test box, see Connecting the breakout box
  • For information on signals, see Signal specification .
  Fig 2: Identifying Breakout Box

  Courtesy of VOLVO CARS OF NORTH AMERICA.
  Fig 3: Identifying Voltage Display

  Courtesy of VOLVO CARS OF NORTH AMERICA.

Is voltage OK? 

• YES 

  Refer to Checking the wires 

• NO 

  Refer to Repairing the wire